Anti-hero vigilante, one Henry Arthur Milton, aka The Ringer, a legendary assassin who killed for personal vengeance. On Inspector Wembury of Scotland Yard's first day as the new commander of Deptford Division; his immediate superior Chief Inspector Bliss, is back from America full of ideas, his fianc?e has just taken a job as secretary to a local lawyer Maurice Meister, a murderous criminal who Wembury knows - but cannot prove - was responsible for his fiancee's brother ending up in jail term for a robbery. Wembury's day is made miserably when the news that The Ringer confirmed dead in Australia, is back in London and desiring vengeance.-Large cast